Posted in ESP8266, MakeBusiness, OpenSprinkler on Oct 15th, 2025
Back in July, we debuted the AC-powered OpenSprinkler v3.4, featuring a new, redesigned enclosure and several hardware improvements (read here). Building on that, today I’m thrilled to unveil the upcoming DC-powered OpenSprinkler v3.4 — the very first OpenSprinkler powered by USB-C! Check out some sneak-peek photos below: This model shares the same sleek, low-profile enclosure […]
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Posted in MakeBusiness on Dec 30th, 2022
Unless if you’ve been living under a rock, you’ve probably heard of ChatGPT by now, if you haven’t given it a try yet. Over this past weekend, I’ve had some fun with it. Not only it’s amazingly good at writing text description, but it can write programming solutions too. Here are just a few things […]
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When designing electronic circuits, often it’s necessary to have a proper enclosure for the project, to protect the circuit board and components, and for aesthetic reasons. There are several options to choose from. For example, if this is a one-off project, you can pick an off-the-shelf enclosure, make custom cutouts to fit the PCB and […]
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A few years ago I purchased a NeoDen TM-240A desktop pick and place machine, and wrote two blog posts about it. It was one of the most popular desktop pick and place machines on the market back then, and has served me well for the past three years. It does small boards pretty well, but […]
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Posted in ESP8266, IoT, MakeBusiness, Product News on Mar 13th, 2016
News and Updates We’ve recently found a technical issue with Blynk’s QR code scan feature that makes the Blynk app not work properly on some iOS devices. The symptom is that the app can receive push notifications but the distance value, read count, and LCD widget are not updating. Please check this forum post for […]
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